Core77
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Sideline business as cartoonist specializing in quirky invention ideas since 1966. Author of 8 books: What the World Needs Now; Public Therapy Buses (two editions); Have Fun Inventing; Patent Depending: Vehicles;Patent Depending: Armbrella; Patent Depending: The Early Years; Patent Depending: A Collection; and Noodlings Coloring Book
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Steven M. Johnson's Bizarre Invention #260: Extra-Stability Shoes
I used to see a very brave older woman who shuffled, an inch or two at a time. It took her many many minutes to shuffle a block. Her perseverance astonished and humbled me. You might want to think about footwear for elders who can barely lift their feet, can only shuffle an inch or two at a time. Imagine for them a magic carpet, please.